摘要:
Two Hepatitis C Virus envelope proteins (E1 and E2) are expressed without sialylation. Recombinant expression of these proteins in lower eukaryotes, or in mammalian cells in which terminal glycosylation is blocked, results in recombinant proteins which are more similar to native HCV glycoproteins. When isolated by GNA lectin affinity, the E1 and E2 proteins aggregate into virus-like particles. Cells bearing a mannose receptor or asialoglycoprotein receptor are capable of being infected with HCV, and supporting culturing of the virus.
摘要:
Two Hepatitis C Virus envelope proteins (E1 and E2) are expressed without sialylation. Recombinant expression of these proteins in lower eukaryotes, or in mammalian cells in which terminal glycosylation is blocked, results in recombinant proteins which are more similar to native HCV glycoproteins. When isolated by GNA lectin affinity, the E1 and E2 proteins aggregate into virus-like particles. Cells bearing a mannose receptor or asialoglycoprotein receptor are capable of being infected with HCV, and supporting culturing of the virus.
摘要:
Two Hepatitis C Virus envelope proteins (El and E2) are expressed without sialylation. Recombinant expression of these proteins in lower eukaryotes, or in mammalian cells in which terminal glycosylation is blocked, results in recombinant proteins which are more similar to native HCV glycoproteins. When isolated by GNA lectin affinity, the E1 and E2 proteins aggregate into virus-like particles. Cells bearing a mannose receptor or asialoglycoprotein receptor are capable of being infected with HCV, and supporting culturing of the virus.
摘要:
The present invention provides polynucleotide constructs, e.g. recombinant viral vectors, for treating a host cell for a hyperproliferative disorder or infection by an infectious agent, said infection or hyperproliferative disorder being characterised by a human disease-associated trans-acting regulatory factor capable of regulating expression of genes. In particular, the present invention provides such constructs comprising:
(i) at least two tandem copies of a cis-acting regulatory sequence which are controllable by said trans-acting regulatory factor; and (ii) an effector gene under the control of said cis-acting regulatory sequence the expression of which renders said cell susceptible to protection or destruction, said effector gene encoding a gene product which is capable of converting a prodrug into its active drug form.
摘要:
Two Hepatitis C Virus envelope proteins (El and E2) are expressed without sialylation. Recombinant expression of these proteins in lower eukaryotes, or in mammalian cells in which terminal glycosylation is blocked, results in recombinant proteins which are more similar to native HCV glycoproteins. When isolated by GNA lectin affinity, the E1 and E2 proteins aggregate into virus-like particles. Cells bearing a mannose receptor or asialoglycoprotein receptor are capable of being infected with HCV, and supporting culturing of the virus.
摘要:
The present invention provides polynucleotide constructs, e.g. recombinant viral vectors, for treating a host cell for a hyperproliferative disorder or infection by an infectious agent, said infection or hyperproliferative disorder being characterised by a human disease-associated trans-acting regulatory factor capable of regulating expression of genes. In particular, the present invention provides such constructs comprising: (i) at least two tandem copies of a cis-acting regulatory sequence which are controllable by said trans-acting regulatory factor; and (ii) an effector gene under the control of said cis-acting regulatory sequence the expression of which renders said cell susceptible to protection or destruction, said effector gene encoding a gene product which is capable of converting a prodrug into its active drug form.